PMC:7435837 / 28576-28579 JSONTXT

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{"project":"LitCovid-PubTator","denotations":[{"id":"637","span":{"begin":0,"end":3},"obj":"Chemical"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"PEI"}